X-ray CT apparatus, X-ray high-voltage device, and X-ray scanning device
US9900971B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2014 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Mar 22, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05G1/56
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In order to provide an X-ray CT apparatus which reduces a waiting time period until irradiation with X-rays is permitted with a simple configuration without detecting a rotation speed of an anode, a controller (23) selects a rating anode rotation speed among a plurality of types thereof depending on an X-ray irradiation condition, and supplies driving power for realizing the selected rating anode rotation speed to a stator coil (81) from a starter circuit (10). The controller (23) obtains time required to reach an irradiation possible rotation speed which is lower than the rating anode rotation speed and is required to apply X-rays in an X-ray irradiation condition. If arrival time has elapsed, irradiation with X-rays is permitted. Consequently, it is possible to reduce a waiting time period in which an operator waits for an anode rotation speed to rise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.